# 初始化客户信息列表
customers = [
    ["Alice", 25, "alice@example.com"],
    ["Bob", 30, "bob@example.com"],
    ["Charlie", 35, "charlie@example.com"]
]

name = "yuan"
age = 18
email = "yuan@123.com"
new_customer = [name, age, email]
customers.append(new_customer)

print(f"添加客户{name}成功！")

print("当前客户列表：", customers)
customers.append("test")
print(type(customers[0]))
print(customers[0])
print(type(customers[4]))